Self-leveling technology automatically adjusts for horizontal, single, or dual slopes up to ±5% on X or Y axes. Covers a 2,600-ft diameter — perfect for the biggest job sites.
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Bluetooth Laser Manager App
Adjust slopes and check calibration wirelessly via your smartphone. Compatible with iOS and Android — no extra remote needed. Full control from panel or mobile app.
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Vertical Alignment Made Easy
Turn the RL-HV2S on its side, use the built-in mounts, or attach to the included tripod for fast, accurate vertical leveling, layout, and alignment work.
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Long Battery Life
65 hours with included NiMH rechargeable batteries. 120 hours with alkaline batteries (sold separately). Alkaline batteries can be used as a convenient backup.
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Contractor-Friendly Controls
Height of Instrument Alert notifies you of any movement. Electronic shutters let you customize beam output. Simple, intuitive controls via front panel or mobile app.
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IP66 All-Weather Rating
Rugged, lightweight, and compact. IP66-rated dust and water protection means this laser is jobsite tough — able to withstand sudden showers and even torrential rainfall.
Built for durability and performance, the RL-HV2S combines Topcon’s legacy of quality with modern innovation. Its robust design and intuitive features make it a must-have for contractors who demand reliability and efficiency. From small layouts to sprawling construction sites, this laser delivers every time.
Ready to experience precision like never before? The Topcon RL-HV2S (1090052-01) is your all-in-one solution for leveling, grading, and alignment. Pair it with the included deluxe receiver, grade rod, and tripod, and take your projects to the next level.
Performance & Application Highlights
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MULTI-USE APPLICATIONS
Designed for a variety of tasks — horizontal, sloping, and vertical laser applications. Slopes up to ±5% can be used in either the X or Y axis. Turn it on its side and use it for layout and alignment jobs.
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HIGH POWERED
With an operating range of over 2,600 feet diameter, the RL-HV2S has the power to cover even the biggest projects with ease.
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LONG BATTERY LIFE
Contractors who want a laser with a long battery life will love the RL-HV2S. Operating time of 60 hours with included Rechargeable NiMH batteries and 120 hours on Alkaline batteries — this laser will still be working long after others have quit. Alkaline batteries can be used as a back-up for the Rechargeable batteries.
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ALL WEATHER DEPENDABILITY
With the IP66 rating, the TOPCON RL-HV2S is JOBSITE TOUGH and can withstand dust, a sudden shower and even a torrential rainfall.
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5-YEAR GUARANTEE
The TOPCON RL-HV2S Laser comes with a FIVE YEAR GUARANTEE. Topcon is backing up this reliable, accurate laser with the best factory warranty in the industry.
Versatile and designed for maximum user convenience, the LS-110D features a digital readout to confidently deliver elevation and vertical alignment control on demand.
It features an extra-wide beam capture sensor that also rejects annoying interference from strobe light exposures. The large and bright LCD displays (front and rear) feature 9-channels of grade information and digitally show the distance to on-grade. By pressing the Hold button, the display is locked so the user can conveniently read the results. For added versatility, three colored LED’s and a strong magnet mount are embedded for vertical operation, ideal for steel erection or operator grade checking while excavating.
To assist in monitoring the Topcon rotating laser, alert icons appear on the LCD if the instrument is disturbed (HI Alert) or when the laser battery is low.
Topcon LS-110D Laser Receiver — Specifications
Working Range (diameter)
2,620 ft (800 m) with RL-HV, RL-200, RL-H5A
Vertical Detecting Range
3.5 inch
LCD Digital Readout Range
2.7 inch
Horizontal Detecting Range
±45°
Strobe Light Suppression
Yes
Units / Measurements
mm / cm / inch / fractional inch
Grade Resolution Settings
±0.02 inch | ±0.05 inch | ±0.10 inch | ±0.20 inch | ±0.50 inch
LCD Grade Indicators
9 Channels
LED Grade Indicators
Orange, Green, Red (On/Off selectable)
Display
LCD on each side
Buzzer
Loud / Low / Off selectable
Bubble Tube
Yes
Warning Icons
HI Alert, Low Battery (for the RL-4HC, RL-SV2S, RL-HV2S and RL-200 Series)
Battery
One AA/LR6 dry-cell battery
Operation Time
Up to 45 hours with alkaline batteries
Battery Level Indicator
LCD Icon
Auto Shut-off
Approximately 30 minutes
Dust / Water Rating
IP67
Operating Temperature
-4°F to 122°F
Storage Temperature
-22°F to 140°F
Detection Spectrum
620 nm to 800 nm
Readout Accuracy Range
3 ft to 164 ft (1 m to 50 m) from the laser
Index Mark
1.6 inch (41 mm) below the top of the receiver
Dimensions
5.3 x 2.7 x 1.0 inch (135 x 69 x 25 mm)
Weight
0.42 lb (190 g), without the holder
Magnetic Mount
Two Round Magnets on Top
Receiver Sensor Bracket
Screw mount
Have questions about this product?
☎ Call us at 1.877.866.5721
Questions We Actually Get
Topcon RL-HV2S — Straight Answers
Every figure below comes from Topcon's own RL-HV instruction manual, which we
host on this page. If your question is not here, call 1-877-866-5721 and ask
somebody who sets these up on a jobsite.
What is the RL-HV2S, and what makes it dual slope?
A self-levelling rotating laser that can hold a grade on two axes at once - X and Y. Each axis takes a grade of up to ±15%, so you can pitch a parking lot to drain in two directions, or a pad with a crossfall, without moving the laser. The single slope RL-HV1S does X only.
What grade range can I set on each axis?
±15% on the X axis and ±15% on the Y axis, set from the front panel (no number keypad, so it takes a lot of button pushes) or from the Laser Manager app, where you type the X and Y grade on your phone's number pad and press Set. The app itself shows the allowed range as -15.000 to +15.000%. Flat work is just 0.000% on both.
How much slope can I really get - is it 5% or 15%?
Two different numbers, and the difference matters on a steep job. The laser will accept a grade of up to ±15% on an axis, but it can only deliver what its self-levelling range allows. Set up normally on a level tripod, you get ±5% without tilting the legs. (Topcon's manual puts the level-head limit at approximately ±8%; in the field, ±5% is the number to plan on.) Past it the laser shows rAnGE OVEr. To go steeper, Topcon's answer is to tilt the laser toward the direction of the slope - in practice, setting the tripod legs so the head leans uphill - which keeps the grade inside the levelling range. Two things to know before you do it: you lose Height Alert on that setup, so the laser will not warn you if it gets bumped, and you should re-check the beam against a known point more often. If your job is steeper than 5%, call us and we will talk it through.
How accurate is it, and how far will it reach?
Topcon rates the RL-HV at ±10 arc seconds on both the horizontal and vertical axes. Working range is approximately 2 to 800 m in diameter (6½ to 2,625 ft) at 600 rpm, as measured by Topcon with the LS-80X level sensor. That range is the laser's; it is the figure to plan the job around.
How fast does it rotate, and which speed should I use?
Two speeds, 300 and 600 rpm, selectable from the laser or the Laser Manager app. 600 rpm is the speed the 800 m range is quoted at and the one to use when a receiver is on a machine or you are watching a display. 300 rpm is there when you want it.
How far out of level can I set it up?
It self-levels automatically within ±5° on both axes - horizontal and vertical. If it is set up beyond that, it will not level.
Can I use it vertically for alignment and plumb work?
Yes. Turn it on its side and it self-levels in the vertical plane, also within ±5°. In vertical rotation, Line Control moves the beam left or right on the X axis, ±5°, so you can walk it onto a reference point without moving the tripod.
What is Matching Mode?
Matching Mode, also called Manual Slope, lets you match the laser to a grade that already exists - a slab, a road, a pipe run. You set the receiver on the existing surface, then use the arrow buttons to lean the beam until it lands on the receiver, so the laser matches what is actually there instead of you calculating a percentage. The manual slope range is ±5° when the laser is on a level surface. It can also be run from the Laser Manager app.
What is Masking?
Masking switches the beam off in the directions you do not need - toward traffic, toward a neighbouring site, toward people - so the laser only turns where the work is. You set it from the menu with the arrow buttons.
What does Height Alert do?
If the laser is knocked or its height changes sharply, Height Alert stops self-levelling and tells you instead of carrying on working off a displaced instrument. It becomes active 10 minutes after levelling and can be switched on or off in the menu. It does not operate while you are setting dual-axis grade in Matching Mode or Manual Mode.
Can I control it from my phone?
Yes. The Laser Manager app for iOS and Android connects over Bluetooth 5.0 and lets you control the laser from your phone - setting slope from the app takes far fewer button pushes. The laser's control panel has no number keypad, so you step to your grade with the arrow buttons; in the app you type the X and Y grade on your phone's number pad and press Set. The app also runs Matching Mode, manual line control, masking and rotation speed, and switches Manual Mode, Sleep Mode and the Safety Lock. Bluetooth range is 100 m horizontal and 20 m with the laser on its side, in good conditions. Topcon's Laser Manager quick guide is on this page to download.
How long do the batteries last?
On four D-cell alkalines, 120 hours. On the rechargeable BT-79Q NiMH pack, 65 hours, with about 13 hours to charge fully. Charge it between 10 and 40°C. The pack is interchangeable with alkalines, so a flat pack is not a lost day.
How tough is it?
Rated IP66 for dust and water. It operates from -20 to +50°C (-4 to 122°F) and is stored from -30 to 60°C. Weight is about 2.6 kg (5.7 lb) with alkaline batteries, 2.8 kg with the BT-79Q. The tripod thread is the standard 5/8 x 11 used on surveying instruments.
What laser class is it?
Class 1, 635 nm, to IEC 60825-1 Ed. 3.0, as stated in Topcon's specification. It is still a laser: do not stare into the aperture and do not point it at anyone.
Where can I get the manual?
Right on this page. We host Topcon's RL-HV instruction manual (with our contact sheet added on the front and back), the check-and-adjustment guide and the Laser Manager quick guide as free PDF downloads. Topcon's own pages are untouched.
Who am I buying from?
Contractors-Tools.com, an authorized Topcon distributor. We stand behind what we sell. Tell us the work - flat pad, single slope, dual slope - and we will check the laser, the receiver and the accessories together before you order. Call 1-877-866-5721.
Source: Topcon RL-HV rotating laser instruction manual (section 11
Specifications and operating sections) and the Topcon Laser Manager quick guide.
Downloads — Topcon RL-HV Manuals
Topcon's own documents, free to download. Authorized Topcon distributor
— Contractors-Tools.com.
9 short tutorials from Contractors-Tools.com: power on and self-level, batteries, setting slope, masking, rotation speed, safety lock and manual mode in the Laser Manager app.
Topcon RL-HV1S & RL-HV2S - How to Power On and Self-Level
Getting started with the Topcon RL-HV series rotary laser? This video shows you exactly how to power on the RL-HV1S and RL-HV2S and let the instrument self-level properly.
Not sure which batteries to use in your Topcon RL-HV1S or RL-HV2S rotary laser? This video breaks down the battery options for the RL-HV series — alkaline vs.
This tutorial covers how to switch the Topcon RL-HV1S and RL-HV2S into Manual Mode using the Laser Manager app.
Pair it with machine control
One man. One laser. Nobody in the hole.
The RL-HV is a long-range, self-levelling laser. This is what
it can do next.
You are already buying the grade reference. Point it at an iDig 2D
system and the same laser runs the machine — depth, slope and distance to
target on a screen in the cab, read straight off the cutting edge.
No rod man
No grade checker in the trench
No climbing out of the seat to check
Grade faster and more accurately, on your own, with
2D, 2D+ and full 3D machine control for an excavator or a skid steer
— at a fraction of what that capability costs anywhere else.
See iDig machine control →Wireless solar sensors, nothing welded, nothing wired. Installs in an
afternoon in your own yard. Contractors-Tools.com is an authorized iDig dealer —
call 1-877-866-5721 and we will spec it against your machine.
Family owned and operated. We set these systems up every week — tell us the
machine and the laser you are running and we will spec it before you order.
